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which controls the heat transfer rate from your skin to the water. The 60° F tubes feel cool against your
skin, not cold.
How do I make sure I order the right size vest?
See the Vest Sizing Guide on our website. If you do end up receiving a vest that is the wrong size, we
will gladly exchange it for you.
How tight should the vest fit?
It is necessary for the tubes to be touching your skin (or a very thin garment against your skin) to take
heat away. There is no cooling where they don't touch. Tension or "stretch" in the adjustable-length
elastic straps on the sides of the vest cause the tubes to be pressed against your body. Adjust the
straps so that as much of the tubing as possible is touching your skin, but not so tight that it feels
uncomfortable or limits your movement. See the "Adjusting Your Vest" section of our Vest User Guide
for information on adjusting the vest to fit you correctly.
Why are there flaps (shirttails) at the bottom of the vest?
These are designed to tuck into your pants to keep your vest securely in place during all of your work &
play activities. Of course, you don't have to tuck them in if you don't want to.
Can I wear a T-shirt underneath, or do the tubes have to touch my bare skin?
You will get maximum cooling when the tubes are against your bare skin, but a thin T-shirt underneath
is fine as long as you wear something else (another T-shirt or thicker) over the vest. Otherwise, you
may cool the surrounding air more than you cool yourself. See the FAQ for more information about
wearing clothing over the vest.
Can I wear clothing over the vest?
Certainly! That's what it was designed for and how it works best. By placing a layer of clothing over the
vest you insulate it and yourself from the surrounding air, thus keeping more of the cold inside to cool
your body. We recommend that bicyclists wear at least a thin jersey over the vest. Leathers worn by
motorcyclists are ideal.
Isn't that hose coming from the vest a little large in diameter to fit under my jacket?
Inside the sponge rubber insulation are eight 3/16" diameter tubes which when "flattened" lay nearly
side-by-side, thus reducing the thickness of the bundle of hoses to about one-half of what you see. The
sponge rubber insulation additionally ensures user comfort where the hoses exit from under your
jacket.
I wear one-piece racing leathers. How do I get the hoses to the outside?
You will have to cut a "buttonhole" in your leathers at about waist level. An upholstery shop that makes
leather seat covers can probably do this for you. The vertical slit should be about 2-1/4" high. On the
inside, back up the slit with a 3" high by 1" wide piece of Velcro Loop (the soft part, not the scratchy)
material. In winter, when not using the cooling vest, you can simply place a 3" x 1" piece of Velcro Hook
material over the Velcro Loop piece before putting on your leathers to ensure that the slit stays shut.
We can provide the pair of Velcro pieces with your order if you tell us you wear racing leathers.
